深部综放工作面沿空巷道超前支护方式优化

Optimizing the Advanced Supporting Method of Gob-side Roadway in Deep Fully Mechanized Caving Face

针对千米深井综放工作面沿空掘巷支护方式进行分析,采取提高掘进一次原始支护,回采前增加二次加强主动支护和动态保持超前支护强度,来解决巷道在掘进后及回采期间围岩变形速度快、变形量大的问题。

Aiming at the support mode of gob-side entry driving in fully mechanized top-coal caving face of kilometer deep mine,the problems of fast deformation and large deformation of surrounding rock after driving and during mining are solved by increasing primary support,increasing secondary active support and dynamic maintenance of advanced support strength before mining.